- Why There Is No Published GCT1 Pass Rate
- What the Published Numbers Actually Tell You
- Format and Scoring: The Mechanics Behind Passing
- Where Candidates Are Most Likely to Lose Points
- Who Sits the GCT1 and Why It Shapes Outcomes
- The Retake Safety Net
- How to Judge Your Own Odds Without a Pass Rate
- A Domain Sequencing Plan Built Around Risk
- Frequently Asked Questions
- ETA International does not publish a pass rate for the General Communications Technician - Level 1 exam in the sources reviewed.
- The cutoff is 75% on a 75-question, two-hour written exam; the raw passing-question count is not published.
- One free retake is available after a 30-day wait, within one year of your first sitting.
- The exam covers 17 competency areas, and ETA does not publish weights, so no single domain can safely be skipped.
Why There Is No Published GCT1 Pass Rate
Anyone searching for the GCT1 pass rate wants a single percentage. It would be convenient, but the honest answer is that ETA International does not publish one for the General Communications Technician - Level 1 credential in the issuer pages reviewed for this article. Any site quoting a precise pass percentage without citing ETA is either guessing or borrowing a number from a different credential that happens to share the "GCT1" acronym.
This matters because several unrelated certifications use similar abbreviations. A pass rate, fee, or domain weighting attached to one of them says nothing about the ETA exam. Everything on this page refers only to the ETA International General Communications Technician - Level 1 exam, and where the data does not exist, we say so rather than fill the gap with invented figures.
For a broader view of how demanding the test is, see our companion piece How Hard Is the GCT1 Exam? Complete Difficulty Guide 2026, which approaches the question from the content side rather than the statistics side.
What the Published Numbers Actually Tell You
While a pass rate is missing, several hard numbers are published, and together they sketch the shape of the challenge.
| Exam Element | What ETA Publishes | What Is Not Published |
|---|---|---|
| Question count | 75 questions | Scored vs. unscored split |
| Time limit | 2 hours | Per-section timing |
| Passing score | 75% | Raw number of correct answers required |
| Content scope | 17 numbered competency headings | Percentage weights per domain |
| Hands-on component | None required | Not applicable |
| Exam fee | USD $105 | No member/non-member split published |
| Retake | One free eligible retake after 30 days | Retake at improving a passing score |
A 75% threshold is moderate by certification standards, but it applies across a very wide syllabus. The difficulty is breadth, not a single brutal topic. For the full scoring explanation, read GCT1 Passing Score 2026: Exactly What You Need to Pass.
Format and Scoring: The Mechanics Behind Passing
The exam is a written knowledge examination delivered through Trapeza, either on computer or on paper and pencil, with ETA Certification Administrators proctoring. Remote proctoring through ExamRoom.AI can be arranged through ETA. No hands-on practical is required, so your result depends entirely on how well you can answer technical questions under time pressure.
Time and pacing
Two hours for 75 questions works out to a little over a minute and a half per item. That is comfortable for recall questions but tight for calculation problems, such as those involving formulas for power, impedance, or decibels. ETA specifically permits its Common Formulas Sheet (copyright 2025) during the GCT1. That is a meaningful allowance, but it does not make the exam unrestricted open-book, so you should not plan to look up concepts as you go.
What you may bring
- Photo ID is required.
- A non-programmable or scientific calculator and scratch paper are permitted under the general testing rules.
- Phones are prohibited.
- Used scratch paper must be surrendered at the end.
- You may not leave the room once testing has begun.
Where Candidates Are Most Likely to Lose Points
Because ETA publishes no domain weights and no per-domain results in the reviewed sources, we cannot name the statistically hardest section. What we can do is reason from the structure of the 17 competency areas. The exam spans safety, electronics theory, RF, antennas, transmission lines, data networks, fiber, telephony, satellite, and physical plant topics. Few working technicians are strong across all of them.
Domains That Reward Calculation Fluency
Electronic and Electrical Theory, Power Systems, Radio Frequency (RF) Fundamentals, Antennas, and Transmission Lines all lean on formulas and unit handling.
- Ohm's law and power relationships
- Decibel math and gain/loss reasoning
- Frequency and wavelength conversions
- Standing wave and impedance-matching concepts
Domains Where Specialists Get Surprised
A land-mobile radio technician may be fluent in Radio Types and Systems yet rusty on Fiber Optic Systems, Telephony Communications, or Satellite Communications.
- Fiber: connector types, loss, and test methods
- Telephony: signaling and common business systems
- Satellite: link basics and equipment roles
- Environmental Systems and Physical Plant / Head End and Security Systems: site infrastructure topics many field techs rarely study
The pattern to watch is not one hard domain but one neglected domain. With 17 areas feeding a 75-question exam, even a modest gap in two or three of them can pull a candidate below 75%. Our guide to GCT1 Exam Domains 2026: Complete Guide to All 17 Content Areas breaks each area down in detail.
Who Sits the GCT1 and Why It Shapes Outcomes
The GCT1 is a stand-alone introductory credential for radio, public-safety, and business/commercial communications. It does not require CETa or GCT2 first. Candidates therefore range from newcomers finishing a workshop to practicing technicians who have worked in the field for years.
That mix is one reason a headline pass rate would be hard to interpret even if it existed. A blended percentage would combine well-prepared veterans, first-time students, and people who sat the exam with little preparation. Your personal odds depend on your background and your preparation, not on an average across that population.
Eligibility ambiguity worth knowing about
The eligibility picture is slightly inconsistent across ETA materials. The 2026 workshop listing states no prerequisite, while the Credly badge criteria mention practicing-technician experience, a written exam, and acceptance of the Code of Conduct, without giving a duration. No quantified education, experience, or training-hour minimum was verified. Confirm your standing directly with ETA before registering. Our GCT1 Requirements 2026: Eligibility, Prerequisites & How to Qualify article tracks this point.
The Retake Safety Net
The retake policy softens the cost of a first-attempt miss. ETA allows one eligible free retake, which must follow a 30-day wait and be completed within one year of the first sitting. It is not available simply to raise a score you already passed with.
- Sit the exam and receive your result.
- If you fall short, wait the required 30 days.
- Use that window to target the domains that cost you points.
- Complete the retake within one year of the first sitting.
Key Takeaway
Budget for the remote proctoring fee again if you test remotely. The $16 add-on remains payable on a retake even though the exam retake itself is free. Full cost mechanics are in GCT1 Certification Cost 2026: Complete Pricing Breakdown.
Scheduling constraints also matter, since the 30-day wait and one-year window interact with testing availability. See GCT1 Exam Dates 2026: Testing Windows, Deadlines & Scheduling for planning details.
How to Judge Your Own Odds Without a Pass Rate
Rather than hunting for a number that is not published, build your own readiness signal. A reasonable framework uses three checks.
- Coverage check: Can you explain, in your own words, at least the core ideas under all 17 competency headings? Any heading you cannot address is a risk.
- Calculation check: Can you work common formula problems quickly using the Common Formulas Sheet and a scientific calculator?
- Practice check: Are your timed practice scores consistently above the 75% line, with margin, across mixed-domain sets?
Aim for a cushion, not a bare pass, on practice material. Practice questions are never identical to the real exam, so scoring only at 75% in practice leaves little room for variance. You can test yourself against mixed-domain questions on our GCT1 practice test site, and the GCT1 Study Guide 2026: How to Pass on Your First Attempt lays out a preparation path.
A Domain Sequencing Plan Built Around Risk
This is the one place where study scheduling belongs, and it is tied to the GCT1 domain list rather than generic habits. The idea is to front-load the foundational domains that everything else depends on, then rotate through the specialty areas where field experience may not cover you.
Foundations
- Safety and Electronic and Electrical Theory
- Tools and Components, Connectorization, and Power Systems
- Get comfortable with the Common Formulas Sheet
RF Core
- Radio Frequency (RF) Fundamentals and Radio Types and Systems
- Antennas and Transmission Lines
- Interference sources and mitigation
Wired and Specialty Systems
- Data Networks and Fiber Optic Systems
- Test Equipment and Methods
- Telephony Communications and Satellite Communications
Infrastructure and Full Review
- Environmental Systems and Physical Plant / Head End and Security Systems
- Timed mixed-domain practice at two-hour pace
- Revisit your weakest two domains
The two-hour, 75-question timing is worth rehearsing at least once end to end. For a condensed review of high-yield facts near exam day, the GCT1 Cheat Sheet 2026: One-Page Review of Must-Know Facts is a useful companion.
Frequently Asked Questions
ETA International does not publish a pass rate for the General Communications Technician - Level 1 exam in the reviewed issuer sources. Be cautious of any figure presented without an ETA citation, since other credentials share the GCT1 acronym.
The passing score is 75% on a 75-question written exam with a two-hour limit. ETA does not publish how many questions are scored versus unscored, so the exact raw number of correct answers needed is not stated.
You may be eligible for one free retake after a 30-day wait, provided you complete it within one year of your first sitting. It cannot be used just to improve a passing score, and remote proctoring ($16) is still payable if you test remotely.
A non-programmable or scientific calculator and scratch paper are allowed under the general testing rules, and ETA specifically permits its Common Formulas Sheet during the GCT1. This does not make the exam unrestricted open-book, and phones are prohibited.
Many candidates do. The exam is written-only with no hands-on portion, so theory gaps matter. Review the full picture in Is the GCT1 Certification Worth It? Complete ROI Analysis 2026 and see what roles it supports in GCT1 Jobs.